Bit dressing device



Aug. 5,1958 B. BESSINGER BIT DRESSING DEVICE 5 Sheets-Sheet 1 Filed Aug. 18, 1955 3g urge)- INVENTOR .B er-nzLceLBe ATTORNEYS g- 1958 B. L'. BESSINGER 25 BIT nmzssmc DEVICE Filed Aug. 18, 1955 5 Sheets-Sheet 2 BeI'njceI-Bess/n er INVENTOR ATTORNEYS Aug. 5, 1958 B. L. BESSINGER BIT DRESSING DEVICE 5 Sheets-Sheet 3 Filed Aug. 18, 1955 R on .Bern tc eLBess zlnger INVENTOR ATTORNEYS Aug. 5, 1958 B. L. BESSINGER BIT DRESSING DEVICE 5 Sheets-Sheet 4 Filed Aug. 18, 1955 I :EJE/g. 1?/o Berni/CelBesszirz INVENTOR ATTORNEYS Aug. 5, 1958 B. 1.. BESSINGER 2,845,825

' BIT DRESSING DEVICE Filed Aug. 18, 1955 4 v 5 Sheets-SheetS I w Berg 11c eLBess Ln9er IN'VENTOR' I BY 1 1 ATTORNEYS United States Patent BIT DRESSING DEVICE Bernice L. Bessinger, Scottsville, Ky.

Application August 18, 1955, Serial No. 529,138

1 Claim. (Cl. 78-5) This invention relates to a device for dressing a bit of the type used in well drilling.

An object of this invention is to provide a device for conveniently holding a long drill bit so that the dull end of the bit may be worked upon and retained in its original shape.

Another object of this invention is to provide a device of this kind which will retain the shape of the bit as originally produced, particularly with respect to the water courses or channels in the bit.

A further object of this invention is to provide a device of this kind which includes a series of attachments for clamping pipes, cables, or the like.

A further object of this invention is to provide a device of this kind which is adjustable as to the bit, both as to length and diameter, so that hits of various sizes can be dressed or sharpened without unduly reducing the length of the bit.

With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combination of parts, hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

Referring to the drawing:

Figure 1 is a detail side elevation of the bit dressing device constructed according to-an embodiment of this invention.

Fig. 2 is a plan view of the device.

Fig. 3 is a front elevation of the device.

Fig. 4 is a rear elevation of the device.

Fig. 5 is a longitudinal section taken on line 55 of Fig. 2.

Fig. 6 is a fragmentary sectional view taken on line 6-6 of Fig. 1.

Fig. 7 is a sectional View taken on line 77 of Fig. 5.

Fig. 8 is a sectional view taken on line 88 of Fig. 5.

Fig. 9 is a sectional View taken on line 9-9 of Fig. 1.

Fig. 10 is a sectional view taken on line 1010 of Fig. 1.

Fig. 11 is a fragmentary side elevation of the device showing the pipe clamping jaws in operative position.

Fig. 12 is a fragmentary vertical section on an enlarged scale showing the forward type of clamping jaw.

Fig. 13 is a rear elevation of the pipe clamping structure.

Fig. 14 is a front elevation of the rear pipe clamping structure.

Fig. 15 is a fragmentary side elevation showing the cable clamping jaws in operative position.

Fig. 16 is a rear elevation of the forward cable clamping jaw.

Fig. 17 is a front elevation of the rear cable clamping aw.

Referring to the drawings, the numeral 20 desginates 2,845,825 Patented Aug. 5, 1958 generally an upright standard mounted on a base plate 21. The base plate 21 is adapted to be secured as by fastening members 22 to a floor or other horizontal stationary member. The standard 21 is formed of a plurality of upright parallel plates 23 which are welded or otherwise fixed to the base plate 21, and the plates 23 have fixed to the upper ends thereof, an anvil forming plate 24. The anvil 24 is inclined to the horizontal, the purpose for which will be hereinafter described.

The standard 20 has extending rearwardly therefrom a pivoted rack generally indicated at 25. The rack 25 includes a plurality of relatively large teeth 26, and a plurality of relatively small teeth 27. The rack 25 also includes a longitudinal shank 28 which extends between a pair of vertically disposed frame bars 29 The shank 28 is secured between the bars 29 by means of pins or other fastening means 3! The forward end of the shank 28 extends between the middle pair of upright plates 23 and a horizontal supporting pin 31 extends through the plates 23 and the forward end of the shank 28. The supporting bars 29 are inclined on their upper edges being inclined downwardly and rearwardly so that the rack 28 will be inclined upwardly and forwardly toward the standard 20. The

- of the anvil 24.

inclination of the rack 25 is the same as the inclination The bars 29 have fixed between the rear portions thereof a block 32 which is formed with a notch 33 in which a horizontal base member 34 is adapted to be secured. A bracing post 35 is disposed between the forward ends of the bars 29 hearing at its upper end against the lower edge of the shank 28. The lower portion of the post or supporting member 35 is fixed relatively to the standard 20 by means of a pair of attaching plates 36 which are secured to a horizontal pin 37. The pin 37 extends through the lower portions of the vertical plates 23. The plates 36 are secured to the bars 29 by means of a pin or fastening member 38. The supporting bars 29 have fixed to the upper edges thereof a pair of confronting channel-shaped guide members 39. A slide 40 engages between the guide members 39 and projects over the rack bar 25. The slide 40 is selectively movable towards or away from the standard 20 by means of a pair of walking dogs 41.

These dogs 41 are rockably secured between a pair of plates 42 which are fixed to a rock lever 43. The rock lever 43 is rockable on a shaft 44 which extends between a pair of plates or posts 45 fixed to the slide 40. The shaft 44 is adapted to be locked relative to the plates 45 by means of a pair of set screws 46. In this manner the lever 43 will be locked against movement so that the slide 40 cannot shift when the bit is being worked upon.

An extension handle 47 is removably engaged with the lever 43, as shown in Fig. 5, so that the desired leverage can be applied to the lever 43 for rocking this lever and moving the slide 40 forward.

The slide 40 has fixed to the upper side thereof a bit supporting block or member 48. This bit supporting member 48 is provided in the upper side thereof with a tapered concave recess 49 providing a shoulder 49 at one of its ends within which the tapered end 50 of the bit 51 is adapted to seat. The bit 51 is adapted to project forwardly from the block 48 and to engage on the upper side of the anvil 24, as shown in dotted lines in Fig. l. The bit 51 is provided on opposite faces thereof with a water course, or longitudinal channel, and in order to provide means whereby the cutting end 52 of the bit will not be deformed and the reshaped end 52 will not be distorted and close the water course on the lower side of the bit, I have provided a water-course engaging bar 53, which is formed with a convex upper side for engaging in the lower water course of the bit 51. This water course engaging member 53 is provided with a parallel arm 54 engage-able on the lower side of the anvil 24, as shown in Fig. 5, and a chain 55 is secured at one end to the water course engaging member-53. The bitlsl is held against lateral movement with respect to the anvil 24 by means of a pair of blocks 56 having shanks 57 engageable through the anvil 24.

The anvil 24 is provided with several openings '58 in which the shanks 57 are selectively engageable so that these blocks 56 can be adjusted to engage on the opposite sides of bits of different diameters.

In orderto provide a means whereby the rack 25 and i the upper or small end of the bit 51 will be protected in the event .the bit should drop off of the block 48, I have provided a plate 59 formed of'wood or the like, which. is formed with a shank 60 engaging between the guide members 39. The plate 59 isjprovidedon the .upper side thereof with a pair of forwardly divergent jaws 61 so that the bit will not readily slide off of the plate.59.

The rear side of the standard has a jaw forming plate62 fixed thereto and the forward side of the block 48 has a jaw forming plate 63 fixedthereto. Theronfronting faces of the plates 62 and 63 are serratedor ribbed to provide friction means for clampingan article therebetween.

In order to provide means whereby a pipe, rod or .the like may be clamped between the jaw 62 and thesblock 48,.1 have provided a pair of pipe clamping members generally indicated at 64 and 65, respectively. The clamping member 64 is formed of a plate 66having a pairof dowel pins 67 fixed thereto, which are engageable through. openings 68 formed in theplate or jaw 62. The .plate=.66.has fixed to the rear side thereof two pairs of vertically.disposed V-shaped jaws 69 and an intermediatehorizontally disposed pair of jaws 70. Clamping member .65 .has formed thereon a plate 7lshaving dowels 72 which are engageable in openings 73 formed in the forward-wall 74 of the block or body 48. The plate 71.has..fixed to the forward side thereof a pair of V-shaped jaw members 75 which are engageable between the jaw.members.69. A horizontal V-shaped jaw'76 extends forwardly from the upper portion of plate 71 and is engageable betweenthe upper pair of jaws 70. The plate 66 has extending .forwardly from the upper edge thereof a flange 77 which overlies the rear portion of anvil 24 and at plate 71-.has extending from the upper edge thereof, a flange 78which engages over the upper forwardportion of block 48.

With the pipe or rod clamping members 69 the pipe or rod can be clamped in a horizontal position between the jaws 69 and 75 and a vertically disposed pipe or flange can be secured between the jaws 70 and 76.

In order to provide means whereby a cable may be held in tight or clamped positionand particularly for the purpose of reducing the diameter of the cable at the point of splicing, I have provided a pair of clamping jaws 79 and 80 which are engageable with the standards 20 and the block48 respectively. The plate 79 is provided with a pair of dowels 81 engageable in the openings 68 of plate 62 and the plate or jaw 80 has a pair of dowels 82 which are engageable in openings 73 of block 48. 'Plate or jaw 79 is provided with an upper forwardly projecting flange 83 engaging over the upper side of anvil 24 and plate or jaw 80 has a rearwardly projecting upper flange 84 engaging over the upper side of block 48. The rear face of the jaw member 79 is provided with a plurality of parallel grooves or channels 85 and auupper inclined channel 86. The forward faces of jaw or plate 80 has a pair of horizontal channels 87- confronting channels 85 and jaw or plate 80 isalsoprovided with an inclined jaw or channel 88 which, is complementary to channel '86.

4 With the plates or jaws 79 and in operative position, a spliced cable may be disposed between the jaws or plates 79 and 80 with the splices engaging in a selected one of the channels in the jaws 79 and 80. Slide 40 of the block 48 are then moved forwardly to tightly clamp the cable therebetween. In this manner the bulge normally formed in splicing a cable will be reduced to a minimum so that the cable will not'wear out at the spliced portion.

In the dressing'of a particular bit the bit 51 has the upper tapered end 50 thereof seated in the recessed or concave seat 49 of block 48. The slide 40 with block 48 isthen adjustedlengthwise of theguides 38 by rocking of lever 43. The forward cutting end 52 of'bit 51 is disposed at substantially the forward portion of the anvil 24. The cutting end is then reshaped to assume its original shape and during this reshaping the water course engaging member 53 will be disposed in the water courseor channel ofthe bit 51 which is.1owermost. It will, of course, be understood that duringthe dressing of the bitthe bit will have the temper drawn therefrom so that the steel can be readilyreformed to the original shape. After-the bit has been reformed theibit will be retempered by well known processes.

In the event it is desired to clamp an article between the jaw 62 and jaw 63, or between the detachablejaws 64 and,.65 or 79 and 80, the slide 40 is moved upwardlyby rocking of handle or lever'43 and its upper or forward position slide 40 will be disposed slightly forwardot the small pivot 27 with the walking dog 41 engaging .the small pivot 27. In this manner the slide 20 will havea shoulder movement with each rock of lever 43Vand forward pushing thereof by dogs 41.

' -What is. claimed is:

In an .anvil for a vbit dressing machine which includes a base and an upright standard secured on said base, said anvil. comprising a horizontal anvil plate mounted onthe upper end ofsaid standard, a bit receiving vbarhavinga recess in the'upper surface thereof in which one end of a drill bit'being dressed, rests, an arm formed integral Withsaid bit receiving bar disposed in parallelrelation with thebase of said'bit receiving bar adapted to clamp overthe edge of said anvil plate, a rack bar having one of its ends secured tov said standard, a bit supporting member slidable along said rack bar, meansfor effecting movement of said bit supporting member along said. rack bar, andsaid bit supporting member having a recess in its upper surface and closed at one end providing ashoulder, in which a drill bit rests, said drill bit engagingsaid shoulder locking the drill bit against movement longitudinally of the base during the dressing operation.

References Cited in the file of this patent UNITED STATES PATENTS Re. 24,093 Mitchhart Nov. 22, 1955 397,470 Remsen Feb. 15, 1889 652,674 Harrah June 26, 1900 653,317 Salzman July 10, .1900 73.4,708 .Hicks July 28, 1903 815,845 Lightbody Mar. 20,1906 828,421 McKinnon Aug. 14, 1906 839,835 'Green Jan. 1, 1907 882,792 McKinnon Mar. 29, 1908 914,480 Caesar Mar.-9, .1909

1,326,765 -Miller Dec. -30,.19l9

1,510,727 Watson Oct. 7, 1924 1,614,649 Butler Jan. 18,1927

1,667,236 Bergquist Apr. 24,1 1.928 2,631,479 ,Shilson Mar. 17,1953 2,754,202 Gullholm July 1-7, 1956 

